You want to depict a Deadly Crack (TM) threatening to destroy the entire world... but you have no cash? If you're The Asylum, makers of every great Z-grade movie ever, no problem. Here's an exclusive behind-the-scenes clip to prove it.

Watch as The Asylum's masterminds use rubber cement for explosions and blow a Porta Potty up 30 feet in the air. And use fan-refurbished military vehicles to add a layer of verisimilitude. These people are total culture heroes, the Roger Cormans of our generation.

This awesome behind-the-scenes snippet is from MegaFault, a movie starring er's Eriq LaSalle which comes out on DVD on Nov. 24. Yes, just in time for Thanksgiving, so you can give thanks that you're not actually in this movie. Here's the official plot summary:

In West Virginia, Charley "Boomer" Baxter (LaSalle) is supervising the placement of mountaintop-removal explosives. As he detonates the TNT, a massive earthquake liquefies the terrain. Within hours, Dr. Amy Lane (Murphy), a government seismologist, arrives at the epicenter. Amy determines that the initial quake has exposed a deep seismic fault that runs across the center of the North American continent and threatens to tear the world in half. Now, Amy and Boomer must race ahead of the massive crack in the earth while devising a plan to stop the devastation and warn everyone in its path.